<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='test.css') }}">
</head>
<body>
    <script src="{{ url_for('static', filename='demo.js')  }}"></script>
    <h1 onclick="click">hello,{{name}}</h1>
    <button onclick="click">dianji</button>
<img src="{{ url_for('static', filename='1000.png')}}">
</body>
</html>